Mitral valve device implanted through atrial septum and implantation method

A mitral valve and atrial septum technology, applied in the field of medical devices, can solve the problems of native valve leaflet damage, tissue compression, blockage, etc., and achieve the effect of increasing the contact area, enhancing the anchoring effect, and reducing damage

Pending Publication Date: 2021-03-05
SHANGHAI TRULIVE MEDTECH CO LTD +1
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]Although mitral valve replacement technology has developed rapidly, there are still some recognized difficulties in the design of the valve, for example, the anchoring of the valve
Some existing mitral valve designs use leaflet clamping or leaflet grabbing for anchoring. These two anchoring methods will pull the chordae and cause damage to the original leaflets.
There are also anchors through the Oversize design of the main body of the stent. With this anchoring method, the stent will compress the tissue, which will affect the heart contraction and there is a risk of conduction block
In addition, the apical drawstring is used for anchoring, and this anchoring method cannot realize the implantation method through the transatrial septal route

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mitral valve device implanted through atrial septum and implantation method
  • Mitral valve device implanted through atrial septum and implantation method
  • Mitral valve device implanted through atrial septum and implantation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a mitral valve device implanted through the atrial septum, including: a valve prosthesis and a ventricular anchor 140. The valve prosthesis includes a stent main body 110 and an artificial valve leaflet 130 that play a supporting role. The artificial leaflet 130 is fixed on the stent main body 110; the ventricular anchor 140 includes a connecting portion 141 and an anchoring portion 142 attached to the inner wall of the ventricle, and the anchoring portion 142 is fixed to the stent through the connecting portion 141. Stent body 110; after the prosthesis device is released, the valve prosthesis is fixed at the original valve annulus to replace the original valve to open or close the blood flow channel, and the anchoring part 142 is The stent body 110 provides a firm anchoring force to prevent the stent body 110 from being impacted into the left atrium.

[0047] In the prior art, in order to solve the problem of valve prosthesis anchoring, the met...

Embodiment 2

[0063] This embodiment provides a mitral valve device implanted through the atrial septum, which is an improvement on the basis of Embodiment 1, wherein the anchoring part 142 of this embodiment is configured as an inverted cone structure, and the inverted cone After the ventricular anchor is released, a cavity 301 is formed between the anchor part 142 and the ventricular wall to reduce the capacity of the left ventricle.

[0064] In patients with dilated cardiomyopathy, LV enlargement results in disproportionately increased LV tension and increased oxygen consumption, resulting in reduced LV efficiency. The cavity 301 formed between the anchoring part and the ventricular wall in this embodiment reduces the capacity of the left ventricle, so that the tension of the left ventricle of the patient is reduced, thereby achieving the effect of treating heart failure. For patients with larger left ventricle and worse systolic function, the therapeutic effect of reducing left ventricl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a mitral valve device implanted through the atrial septum. The mitral valve device comprises a valve prosthesis and a ventricular anchoring part, wherein the valve prosthesis comprises a stent main body achieving a supporting effect and an artificial valve leaflet; the artificial valve leaflet is fixed at a preset position of the stent main body; and the ventricular anchoring part comprises a connecting part and an anchoring part attached to the inner wall of a ventricle, and the anchoring part is fixed to the stent main body through the connecting part. The invention further provides an implantation method of the mitral valve device. After the valve device is released, the valve prosthesis is fixed to the native valve ring and used for replacing a native valve to open or close a blood flow channel, and a ventricular anchoring part provides a firm anchoring force for the stent main body through the attachment effect of the anchoring part and the ventricular wallso as to prevent the stent main body from being impacted to the left atrium.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a mitral valve device implanted through the interatrial septum, which is used to replace the original valve. Background technique [0002] The heart contains four chambers, the right atrium (RA), right ventricle (RV), left atrium (LA) and left ventricle (LV). The pumping action of the left and right sides of the heart generally occurs simultaneously throughout the cardiac cycle. The valve that separates the atria from the ventricles is called the atrioventricular valve. The atrioventricular valve acts as a one-way valve to ensure the normal flow of blood in the heart chambers. The atrioventricular valve between the left atrium and left ventricle is the mitral valve, and the atrioventricular valve between the right atrium and right ventricle is the tricuspid valve. The pulmonary valve directs blood flow to the pulmonary artery, and from there to the lungs; blood returns ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61F2/24
CPCA61F2/246A61F2/2463A61F2/2466
Inventor 不公告发明人
Owner SHANGHAI TRULIVE MEDTECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap